Results 51 to 60 of about 29,140 (209)

The Effect of Turbulent Intensity on Friction Coefficient in Boundary-Layer Transitional Flat Plate Flow

Applied Sciences
In this study, the effect of inlet-turbulence intensity on the friction coefficient for the transitional boundary layer has been investigated computationally. For this purpose, two equation turbulence models of Std. k-ε, RNG k-ε, Std.
Muhsine Saru, Hıfzı Arda Erşan, Erhan Pulat   +2 more
doaj   +1 more source

Numerical simulation study on distribution law of respirable dust concentration and its relationship with turbulence intensity in fully mechanized mining face

Meikuang Anquan, 2021
By using the fluid dynamics software FLUENT, the 3D numerical simulations of the concentration distribution and motion law of the respirable dust in 22410 fully mechanized mining face of Shendong Halagou Coal Mine were carried out by the two-phase ...
XIANG Xiaogang, SUN Shaowei, ZHAO Meicheng, DENG Xiaoliang, LI Peng, XU Rui   +5 more
doaj   +1 more source

MIMO free-space optical communication employing subcarrier intensity modulation in atmospheric turbulence channels

, 2009
In this paper, we analyse the error performance of transmitter/receiver array free-space optical (FSO) communication system employing binary phase shift keying (BPSK) subcarrier intensity modulation (SIM) in clear but turbulent atmospheric channel ...
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Wasiu O. Popoola, Ahmadi, Vahid, Erich Leitgeb, Leitgeb, Erich, Vahid Ahmadi, Zabih Ghassemlooy   +7 more
core   +1 more source

Gravity wave turbulence in a laboratory flume [PDF]

, 2007
We present an experimental study of the statistics of surface gravity wave turbulence in a flume of a horizontal size 12×6  m. For a wide range of amplitudes the wave energy spectrum was found to scale as Eω∼ω-ν in a frequency range of up to one decade ...
Nazarenko, Sergey, Denissenko, Petr, Lukaschuk, Sergei   +2 more
core   +1 more source

Wind Characteristics Investigation on The Roofs of Three Adjacent High-Rise Buildings in a Coastal Area during Typhoon Meranti

Applied Sciences, 2019
This paper presents the study of the pulsating characteristics of three adjacent high-rise buildings A, B, and C under typhoon ‘Moranti’ (2016) based on the measurement of the actual top wind speed.
Chequan Wang, Zhengnong Li, Qizhi Luo, Lan Hu, Zhefei Zhao, Jiaxing Hu, Xuewen Zhang   +6 more
doaj   +1 more source

Novel Detection of Atmospheric Turbulence Profile Using Mie-Scattering Lidar Based on Non-Kolmogorov Turbulence Theory

Entropy, 2023
Turbulence can cause effects such as light intensity fluctuations and phase fluctuations when a laser is transmitted in the atmosphere, which has serious impacts on a number of optical engineering application effects and on climate improvement. Therefore,
Jiandong Mao, Yingnan Zhang, Juan Li, Xin Gong, Hu Zhao, Zhimin Rao   +5 more
doaj   +1 more source

Direct numerical simulations of transition in a compressor cascade: The influence of free-stream turbulence [PDF]

, 2010
Copyright © Cambridge University Press 2010.The flow through a compressor passage without and with incoming free-stream grid turbulence is simulated.
TAMER A. ZAKI, Rodi, W, Durbin, PA, JAN G. WISSINK, WOLFGANG RODI, Wissink, JG, Zaki, TA, PAUL A. DURBIN   +7 more
core   +1 more source

The streamwise turbulence intensity in the intermediate layer of turbulent pipe flow [PDF]

Journal of Fluid Mechanics, 2015
The spectral model of Perryet al. (J. Fluid Mech., vol. 165, 1986, pp. 163–199) predicts that the integral length scale varies very slowly with distance to the wall in the intermediate layer. The only way for the integral length scale’s variation to be more realistic while keeping with the Townsend–Perry attached eddy spectrum is to add a new ...
Vassilicos, JC, Laval, J-P, Foucaut, J-M, Stanislas, M   +3 more
openaire   +3 more sources

Experimental Investigation of Turbulence Promoters effect on Characteristics of Wake related to Linear Compressor Cascade [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2014
In this paper, considering the importance of incoming flow turbulence intensity into combustion chamber, tripping wire effect on the flow wake has been experimentally investigated within a linear compressor cascade. To do this, two wires were implemented
amir khoshnevis, Vahid Barzanooni, Mohsen Vahidi   +2 more
doaj  

Influence of Source Parameters and Non-Kolmogorov Turbulence on Evolution Properties of Radial Phased-Locked Partially Coherent Vortex Beam Array

Photonics, 2021
Partially coherent optical vortices have been applicated widely to reduce the influence of atmospheric turbulence, especially for free-space optical (FSO) communication.
Jiao Wang, Mingjun Wang, Sichen Lei, Zhenkun Tan, Chenbai Wang, Yuanfei Wang   +5 more
doaj   +1 more source